C3132121111133313233121111331333133313331333133313331323133313221211211   >>    C313212111113331323312111133133313331333133313331333132313331322121121   <<    C3132121111133313233121111331333133313331333133313331323133313221211213   >>      C3132121111133313233121111331333133313331333133313331323133313221211212   >>